Problems

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Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 3880 604 16% 0.01 784 413 53% 7.2
10 Kinds of People 6680 1443 22% 0.01 1159 795 69% 5.2
2048 4483 2172 48% 0.00 2063 1760 85% 2.4
3D Printed Statues 3142 1549 49% 0.00 1451 1301 90% 2.0
3D Printer 306 51 17% 0.00 97 44 45% 8.8
3-Sided Dice 1350 95 7% 0.00 215 75 35% 8.7
4 thought 4171 1413 34% 0.00 1405 1171 83% 2.8
A1 Paper 2946 882 30% 0.00 856 669 78% 3.4
Aaah! 14019 6834 49% 0.00 5962 5540 93% 1.7
Abandoned Animal 653 115 18% 0.03 140 99 71% 5.4
ABC 4705 2222 47% 0.00 2124 1927 91% 1.7
Above Average 1811 792 44% 0.00 810 735 91% 1.8
A+B Problem 3717 362 10% 0.04 554 190 34% 8.4
A Brief Gerrymander 103 20 19% 0.15 21 12 57% 7.2
Abstract Art 166 38 23% 0.00 34 26 76% 5.9
Absurdistan Roads II 465 165 35% 0.00 157 106 68% 6.7
Absurdistan Roads III 1060 277 26% 0.02 266 192 72% 6.1
A Classy Problem 4727 1259 27% 0.01 1076 836 78% 4.2
ACM Contest Scoring 3973 2468 62% 0.00 2149 2034 95% 1.5
Adding Words 5006 1117 22% 0.00 1190 900 76% 3.8
A Different List Game 4674 324 7% 0.00 565 110 19% 9.1
A Different Problem 16585 6532 39% 0.00 6034 5233 87% 2.3
Adjoin the Networks 1186 323 27% 0.00 278 212 76% 6.0
Administrative Difficulties 523 117 22% 0.03 147 92 63% 6.6
Advanced Causal Measurements 22 5 23% 0.10 6 5 83% 5.6
Adventures in Moving -- Part IV 549 175 32% 0.00 163 139 85% 4.7
A Favourable Ending 890 186 21% 0.00 213 144 68% 5.1
A Feast For Cats 1018 368 36% 0.19 243 197 81% 4.9
Air Conditioned Minions 2430 674 28% 0.00 725 535 74% 4.3
Airline Hub 1291 221 17% 0.01 250 136 54% 7.0
Airport Coffee 610 132 22% 0.09 116 92 79% 6.3
Airport Construction 2471 331 13% 0.02 252 132 52% 7.2
Airport Logistics 45 10 22% 0.00 16 10 62% 7.7
Airports 181 63 35% 0.13 60 43 72% 6.1
Akcija 3270 1448 44% 0.01 1284 1126 88% 2.1
Aladin 669 58 9% 0.10 100 18 18% 8.8
Alchemy 84 10 12% 0.03 22 10 45% 8.5
Alea iacta est 24 11 46% 0.34 13 11 85% 5.9
Alice in the Digital World 948 247 26% 0.01 255 197 77% 3.8
Alien Numbers 1337 677 51% 0.00 664 600 90% 2.0
A List Game 4843 1429 30% 0.00 1371 1140 83% 3.0
All about that base 1915 732 38% 0.00 780 649 83% 2.9
All Different Directions 651 292 45% 0.00 269 235 87% 2.6
Allergy Test 259 88 34% 0.00 76 43 57% 7.1
All Friends 595 106 18% 0.00 99 50 51% 9.1
All Just A Dream 1073 239 22% 0.05 176 125 71% 6.1
All Pairs Shortest Path 5224 878 17% 0.02 597 416 70% 5.1
Almost Perfect 3593 836 23% 0.00 895 700 78% 3.4
Almost Union-Find 3961 649 16% 0.02 621 327 53% 6.9
Alphabet 218 116 53% 0.00 123 103 84% 3.0
Alphabet Spam 4015 2605 65% 0.00 1921 1844 96% 1.4
Alternative Bracket Notation 187 77 41% 0.00 81 67 83% 5.6
Amalgamated Artichokes 2905 1320 45% 0.01 1167 1017 87% 2.4
Amanda Lounges 1068 290 27% 0.04 256 197 77% 5.7
A Mazing! 1138 280 25% 0.09 128 92 72% 6.0
Amazing Race 236 60 25% 0.39 67 47 70% 7.2
Ambiguous Result 129 40 31% 0.03 55 38 69% 6.7
Amsterdam Distance 734 268 37% 0.00 314 241 77% 2.9
A Multiplication Game 194 48 25% 0.00 65 45 69% 5.5
Anagram Counting 1917 749 39% 0.00 717 592 83% 3.0
Andrew the Ant 108 39 36% 0.06 48 35 73% 4.8
A New Alphabet 6873 3131 46% 0.00 2960 2749 93% 1.6
Animal Classification 1158 235 20% 0.03 218 135 62% 7.1
An Industrial Spy 1134 586 52% 0.02 445 380 85% 3.3
Another Brick in the Wall 1374 732 53% 0.00 719 654 91% 1.9
Another Candies 4776 1280 27% 0.00 1361 1110 82% 2.9
Another Dice Game 78 57 73% 0.00 49 46 94% 3.7
Another Query on Array Problem 882 108 12% 0.05 185 78 42% 7.6
Anthony and Cora 537 140 26% 0.00 169 112 66% 5.9
Anthony and Diablo 1225 418 34% 0.00 471 400 85% 2.5
Antiarithmetic? 751 113 15% 0.01 198 91 46% 8.0
Ants 1696 782 46% 0.00 573 503 88% 2.4
Apaxiaaaaaaaaaaaans! 6114 3864 63% 0.00 3497 3355 96% 1.3
Apparatus 535 133 25% 0.01 111 84 76% 5.4
Apple Market 414 80 19% 0.07 88 47 53% 8.4
Apples, Cherries, and Mangos 291 92 32% 0.02 85 67 79% 6.1
Aquarium Tank 276 85 31% 0.00 78 60 77% 4.5
Aqueduct Construction 111 36 32% 0.01 32 26 81% 7.0
A Question of Ingestion 464 103 22% 0.00 93 71 76% 6.0
Arable Area 204 44 22% 0.04 49 29 59% 8.1
A Rational Sequence 1030 330 32% 0.00 373 261 70% 5.2
A Rational Sequence 2 1107 799 72% 0.00 737 701 95% 1.6
A Rational Sequence (Take 3) 445 377 85% 0.00 271 262 97% 1.7
Arbitrage? 1556 298 19% 0.04 219 177 81% 3.3
Arcade! 1011 189 19% 0.01 172 127 74% 6.0
Arctic Network 1028 368 36% 0.00 307 244 79% 4.5
A Real Challenge 3933 1898 48% 0.00 1870 1737 93% 1.7
Area of Effect 79 9 11% 3.16 14 7 50% 8.0
Arithmetic 1298 374 29% 0.00 367 283 77% 3.7
Army Strength (Easy) 2056 1078 52% 0.00 958 862 90% 2.0
Army Strength (Hard) 2769 1431 52% 0.01 966 855 89% 2.4
Around and Around We Go 28 11 39% 0.00 16 10 62% 7.9
Around the track 11 4 36% 0.01 5 4 80% 6.1
Around the Track 257 32 12% 0.00 49 22 45% 8.1
Arranging Hat 187 78 42% 0.05 73 63 86% 5.2
Arranging Wine 78 20 26% 0.03 28 19 68% 6.9
Arriving on Time 143 49 34% 0.04 46 39 85% 4.2
Artur 259 59 23% 0.06 66 42 64% 6.4
Artwork 685 249 36% 0.06 227 148 65% 5.9
A Safe Bet 217 68 31% 0.15 66 48 73% 6.4